Table of Contents
Plants, Volume 9, Issue 5 (May 2020) – 118 articles
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Cover Story (view full-size image) The sensitive plant Mimosa pudica moves its leaves immediately in response to mechanical [...] Read more. The sensitive plant Mimosa pudica moves its leaves immediately in response to mechanical stimulation (e.g., touch). This dynamic leaf movement is driven by the propagation of stimulus information and a loss of turgor pressure in the motor organ pulvinus. Previous electrophysiological/pharmacological studies suggested that the long-distance signal propagation and the pulvinar movement were linked to action potentials and ion migrations (e.g., Ca2+, K+ and Cl–) across the plasma membrane. This review highlights the current knowledge of the mechanosensory transduction and proposes a turgor loss model in which the action potentials followed by water flux in the pulvinar cells represent a critical step for rapid movement in M. pudica. View this paper